TS EAMCET 14-Sep-2020 Shift 1 Solved Paper
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Question : 112 of 160
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Two concentric circular coils, one of small radius r and the other of large radius R are placed co-axially with centers coinciding. If the radius r is changed by 2%, then the change in mutual inductance of the arrangement is
(Assume r<< R )
(Assume r<< R )
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